722152 has 16 divisors (see below), whose sum is σ = 1425600. Its totient is φ = 342000.

The previous prime is 722149. The next prime is 722153. The reversal of 722152 is 251227.

It is a super-2 number, since 2×722152² = 1043007022208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (722153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2224 + ... + 2527.

It is an arithmetic number, because the mean of its divisors is an integer number (89100).

2⁷²²¹⁵² is an apocalyptic number.

It is an amenable number.

722152 is a deficient number, since it is larger than the sum of its proper divisors (703448).

722152 is a wasteful number, since it uses less digits than its factorization.

722152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4776 (or 4772 counting only the distinct ones).

The product of its digits is 280, while the sum is 19.

The square root of 722152 is about 849.7952694620. The cubic root of 722152 is about 89.7173022522.

Adding to 722152 its reverse (251227), we get a palindrome (973379).

The spelling of 722152 in words is "seven hundred twenty-two thousand, one hundred fifty-two".